serial: 8250: Fix oops for port->pm on uart_change_pm()
In the Linux kernel, the following vulnerability has been resolved: serial: 8250: Fix oops for port->pm on uart_change_pm() Unloading a hardware specific 8250 driver can produce error "Unable to handle kernel paging request at virtual address" about ten seconds after unloading the driver. This happens on uart_hangup() calling uart_change_pm(). Turns out commit 04e82793f068 ("serial: 8250: Reinit port->pm on port specific driver unbind") was only a partial fix. If the hardware specific driver has initialized port->pm function, we need to clear port->pm too. Just reinitializing port->ops does not do this. Otherwise serial8250_pm() will call port->pm() instead of serial8250_do_pm().
CVE-2023-54220
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2023-54220
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "490bf37eaabb0a857ed1ae8e75d8854e41662f1c",
"lessThan": "66f3e55960698c874b0598277913b478ecd29573",
"versionType": "git"
},
{
"status": "affected",
"version": "c9e080c3005fd183c56ff8f4d75edb5da0765d2c",
"lessThan": "720a297b334e85d34099e83d1f375b92c3efedd6",
"versionType": "git"
},
{
"status": "affected",
"version": "d5cd2928d31042a7c0a01464f9a8d95be736421d",
"lessThan": "b653289ca6460a6552c8590b75dfa84a0140a46b",
"versionType": "git"
},
{
"status": "affected",
"version": "2c86a1305c1406f45ea780d06953c484ea1d9e6e",
"lessThan": "bd70d0b28010d560a8be96b44fea86fe2ba016ae",
"versionType": "git"
},
{
"status": "affected",
"version": "1ba5594739d858e524ff0f398ee1ebfe0a8b9d41",
"lessThan": "18e27df4f2b4e257c317ba8076f31a888f6cc64b",
"versionType": "git"
},
{
"status": "affected",
"version": "af4d6dbb1a92ea424ad1ba1d0c88c7fa2345d872",
"lessThan": "0c05493341d6f2097f75f0a5dbb7b53a9e8c5f6c",
"versionType": "git"
},
{
"status": "affected",
"version": "04e82793f068d2f0ffe62fcea03d007a8cdc16a7",
"lessThan": "375806616f8c772c33d40e112530887b37c1a816",
"versionType": "git"
},
{
"status": "affected",
"version": "04e82793f068d2f0ffe62fcea03d007a8cdc16a7",
"lessThan": "dfe2aeb226fd5e19b0ee795f4f6ed8bc494c1534",
"versionType": "git"
},
{
"status": "affected",
"version": "8e596aed5f2f98cf3e6e98d6fe1d689f4a319308",
"versionType": "git"
},
{
"status": "affected",
"version": "4.14.316",
"lessThan": "4.14.324",
"versionType": "semver"
},
{
"status": "affected",
"version": "4.19.284",
"lessThan": "4.19.293",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.4.244",
"lessThan": "5.4.255",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.10.181",
"lessThan": "5.10.192",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.15.113",
"lessThan": "5.15.128",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.1.30",
"lessThan": "6.1.47",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.3.4",
"lessThan": "6.4",
"versionType": "semver"
}
],
"programFiles": [
"drivers/tty/serial/8250/8250_port.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.4"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.4",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "4.14.324",
"versionType": "semver",
"lessThanOrEqual": "4.14.*"
},
{
"status": "unaffected",
"version": "4.19.293",
"versionType": "semver",
"lessThanOrEqual": "4.19.*"
},
{
"status": "unaffected",
"version": "5.4.255",
"versionType": "semver",
"lessThanOrEqual": "5.4.*"
},
{
"status": "unaffected",
"version": "5.10.192",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.128",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.47",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.4.12",
"versionType": "semver",
"lessThanOrEqual": "6.4.*"
},
{
"status": "unaffected",
"version": "6.5",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/tty/serial/8250/8250_port.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2023-54220
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #30363 · Revision 1
- Added to Heist Feed
- Publisher date